<template>
    <div class="app-container">
        <!-- 工具条 -->
        <div class="tools-div">
            <el-button type="success" icon="el-icon-plus" size="mini" @click="add()">添 加</el-button>
        </div>

        <!-- 列表 -->
        <el-table
            :data="sysMenuList"
            style="width: 100%;margin-bottom: 20px;margin-top: 10px;"
            row-key="id"
            border
            :default-expand-all="false"
            :tree-props="{children: 'children'}">

        <el-table-column prop="name" label="菜单名称" width="160"/>
        <el-table-column label="图标">
            <template slot-scope="scope">
            <i :class="scope.row.icon"></i>
            </template>
        </el-table-column>

        <el-table-column prop="perms" label="权限标识" width="160"/>
        <el-table-column prop="path" label="路由地址" width="120"/>
        <el-table-column prop="component" label="组件路径" width="160"/>
        <el-table-column prop="sortValue" label="排序" width="60"/>
        <el-table-column label="状态" width="80">
            <template slot-scope="scope">
            <el-switch
                v-model="scope.row.status === 1" disabled="true">
            </el-switch>
            </template>
        </el-table-column>
        <el-table-column prop="createTime" label="创建时间" width="160"/>

        <el-table-column label="操作" width="180" align="center" fixed="right">
            <template slot-scope="scope">
            <el-button type="success" v-if="scope.row.type !== 2" icon="el-icon-plus" size="mini" @click="add(scope.row)" title="添加下级节点"/>
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row)" title="修改"/>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeDataById(scope.row.id)" title="删除" :disabled="scope.row.children.length > 0"/>
            </template>
        </el-table-column>
        </el-table>

        <el-dialog :title="dialogTitle" :visible.sync="dialogVisible" width="40%" >
        
        <el-form ref="dataForm" :model="sysMenu" label-width="150px" size="small" style="padding-right: 40px;">
            <el-form-item label="上级部门" v-if="sysMenu.id === ''">
            <el-input v-model="sysMenu.parentName" disabled="true"/>
            </el-form-item>

            <el-form-item label="菜单类型" prop="type">
            <el-radio-group v-model="sysMenu.type" :disabled="typeDisabled">
                <el-radio :label="0" :disabled="type0Disabled">目录</el-radio>
                <el-radio :label="1" :disabled="type1Disabled">菜单</el-radio>
                <el-radio :label="2" :disabled="type2Disabled">按钮</el-radio>
            </el-radio-group>
            </el-form-item>

            <el-form-item label="菜单名称" prop="name">
            <el-input v-model="sysMenu.name"/>
            </el-form-item>

            <el-form-item label="图标" prop="icon" v-if="sysMenu.type !== 2">
            <el-select v-model="sysMenu.icon" clearable>
                <el-option v-for="item in iconList" :key="item.class" :label="item.class" :value="item.class">
                <span style="float: left;">
                <i :class="item.class"></i>  <!-- 如果动态显示图标，这里添加判断 -->
                </span>
                <span style="padding-left: 6px;">{{ item.class }}</span>
                </el-option>
            </el-select>
            </el-form-item>

            <el-form-item label="排序">
            <el-input-number v-model="sysMenu.sortValue" controls-position="right" :min="0" />
            </el-form-item>

            <el-form-item prop="path">
                <span slot="label">
                    <el-tooltip content="访问的路由地址，如：`sysUser`" placement="top">
                    <i class="el-icon-question"></i>
                    </el-tooltip>
                    路由地址
                </span>
            <el-input v-model="sysMenu.path" placeholder="请输入路由地址" />
            </el-form-item>

            <el-form-item prop="component" v-if="sysMenu.type !== 0">
                <span slot="label">
                    <el-tooltip content="访问的组件路径，如：`system/user/index`，默认在`views`目录下" placement="top">
                    <i class="el-icon-question"></i>
                    </el-tooltip>
                    组件路径
                </span>
            <el-input v-model="sysMenu.component" placeholder="请输入组件路径" />
            </el-form-item>

            <el-form-item v-if="sysMenu.type === 2">
            <el-input v-model="sysMenu.perms" placeholder="请输入权限标识" maxlength="100" />
            <span slot="label">
                    <el-tooltip content="控制器中定义的权限字符，如：@PreAuthorize(hasAuthority('bnt.sysRole.list'))" placement="top">
                    <i class="el-icon-question"></i>
                    </el-tooltip>
                    权限字符
                </span>
            </el-form-item>
            
            <el-form-item label="状态" prop="type">
            <el-radio-group v-model="sysMenu.status">
                <el-radio :label="1">正常</el-radio>
                <el-radio :label="0">停用</el-radio>
            </el-radio-group>
            </el-form-item>
        </el-form>

        <span slot="footer" class="dialog-footer">
            <el-button @click="dialogVisible = false" size="small" icon="el-icon-refresh-right">取 消</el-button>
            <el-button type="primary" icon="el-icon-check" @click="saveOrUpdate()" size="small">确 定</el-button>
        </span>
        
        </el-dialog>
    </div>
</template>
<script>
import api from '@/api/menu/menu.js'

const defaultForm = {
  id: '',
  parentId: '',
  name: '',
  type: 0,
  path: '',
  component: '',
  perms: '',
  icon: '',
  sortValue: 1,
  status: 1
}

export default {
    //定义数据
    data(){
        return {
            sysMenuList: [],
            expandKeys: [], // 需要自动展开的项

            typeDisabled: false,
            type0Disabled: false,
            type1Disabled: false,
            type2Disabled: false,
            dialogTitle: '',

            dialogVisible: false,
            sysMenu: defaultForm,
            saveBtnDisabled: false,

            iconList: [
                {
                class: "el-icon-s-tools",
                },
                {
                class: "el-icon-s-custom",
                },
                {
                class: "el-icon-setting",
                },
                {
                class: "el-icon-user-solid",
                },
                {
                class: "el-icon-s-help",
                },
                {
                class: "el-icon-phone",
                },
                {
                class: "el-icon-s-unfold",
                },
                {
                class: "el-icon-s-operation",
                },
                {
                class: "el-icon-more-outline",
                },
                {
                class: "el-icon-s-check",
                },
                {
                class: "el-icon-tickets",
                },
                {
                class: "el-icon-s-goods",
                },
                {
                class: "el-icon-document-remove",
                },
                {
                class: "el-icon-warning",
                },
                {
                class: "el-icon-warning-outline",
                },
                {
                class: "el-icon-question",
                },
                {
                class: "el-icon-info",
                }
            ]
            }
    },
    created(){
        this.fetchData();
    },
    methods: {
        fetchData(){
            api.findNodes().then(response => {
                this.sysMenuList = response.data
                console.log(this.sysMenuList)
            });
        },

        //根据id删除数据
        removeDataById(id) {
        
        this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
        }).then(() => { // promise
            // 点击确定，远程调用ajax
            return api.removeById(id)
        }).then((response) => {
            this.fetchData()
            this.$message({
            type: 'success',
            message: response.message
            })
        }).catch(() => {
            this.$message.info('取消删除')
        })
        },

        //弹出添加或更新的表单
        add(row){
            this.typeDisabled = false
            this.dialogTitle = '添加下级节点'
            this.dialogVisible = true

            this.sysMenu = Object.assign({}, defaultForm)
            this.sysMenu.id = ''
            if(row) {
                this.sysMenu.parentId = row.id
                this.sysMenu.parentName = row.name
                //this.sysMenu.component = 'ParentView'
                if(row.type === 0) {
                this.sysMenu.type = 1
                this.typeDisabled = false
                this.type0Disabled = false
                this.type1Disabled = false
                this.type2Disabled = true
                } else if(row.type === 1) {
                this.sysMenu.type = 2
                this.typeDisabled = true
                }
            } else {
                this.dialogTitle = '添加目录节点'
                this.sysMenu.type = 0
                this.sysMenu.component = 'Layout'
                this.sysMenu.parentId = 0
                this.typeDisabled = true
            }
        },

        //编辑
        edit(row) {
            this.dialogTitle = '修改菜单'
            this.dialogVisible = true

            this.sysMenu = Object.assign({}, row)
            this.typeDisabled = true
        },
        
        //添加或更新
        saveOrUpdate() {
            if(this.sysMenu.type === 0 && this.sysMenu.parentId !== 0) {
                this.sysMenu.component = 'ParentView'
            }
            this.$refs.dataForm.validate(valid => {
                if (valid) {
                this.saveBtnDisabled = true // 防止表单重复提交
                if (!this.sysMenu.id) {
                    this.save()
                } else {
                    this.update()
                }
                }
            })
        },

        //添加
        save() {
            api.save(this.sysMenu).then(response => {
                this.$message.success(response.message || '操作成功')
                this.dialogVisible = false
                this.fetchData(this.page)
            })
        },

        //更新
        update() {
            api.updateById(this.sysMenu).then(response => {
                this.$message.success(response.message || '操作成功')
                this.dialogVisible = false
                this.fetchData()
            })
        }
    },
}
</script>